For most languages, this change impacts typically 6-9% of queries to a degree that a user might notice. This is distinctly lower than the initial launch of Panda, which affected almost 12% of English queries to a noticeable amount. We are launching this change for all languages except Chinese, Japanese, and Korean, where we continue to test improvements.

For sites that are affected by this algorithmic change, we have a post providing guidance on how Google searches for high-quality sites. We also have webmaster forums in many languages for publishers who wish to give additional feedback and get advice. We’ll continue working to do the right thing for our users and serve them the best results we can.